Add test data for parsing of complicated <..> and <..>= combinations

^KT-52684 Related
^KT-8263 Related

compiler/testData/diagnostics/tests/syntax/complicatedLTGT.fir.kt

@@ -0,0 +1,8 @@
+// SKIP_TXT
+// ISSUE: KT-8263
+
+fun test(x: Int, y: Int) {
+    if (<!CONDITION_TYPE_MISMATCH!>x < (<!SYNTAX!>if<!><!SYNTAX!><!> <!SYNTAX!>(<!><!UNRESOLVED_REFERENCE!><!SYNTAX!><!>y<!> ><!><!SYNTAX!><!> 115<!SYNTAX!>) 1 else 2))<!> {
+        Unit
+    }
+}

compiler/testData/diagnostics/tests/syntax/complicatedLTGT.kt

@@ -0,0 +1,8 @@
+// SKIP_TXT
+// ISSUE: KT-8263
+
+fun test(x: Int, y: Int) {
+    if (<!UNRESOLVED_REFERENCE!>x<!> < (<!SYNTAX!>if<!><!SYNTAX!><!> <!SYNTAX!>(<!><!UNRESOLVED_REFERENCE!><!SYNTAX!><!>y<!> ><!SYNTAX!><!> 115<!SYNTAX!>) 1 else 2))<!> {
+        Unit
+    }
+}

compiler/testData/diagnostics/tests/syntax/complicatedLTGTE.fir.kt

@@ -0,0 +1,8 @@
+// SKIP_TXT
+// ISSUE: KT-52684
+
+fun test(x: Int, y: Int) {
+    if (<!ASSIGNMENT_IN_EXPRESSION_CONTEXT!>x < (<!SYNTAX!>if<!><!SYNTAX!><!> <!SYNTAX!>(<!><!SYNTAX!><!>y >= 115<!>) 1 else 2<!SYNTAX!>))<!> {
+        Unit
+    }
+}

compiler/testData/diagnostics/tests/syntax/complicatedLTGTE.kt

@@ -0,0 +1,8 @@
+// SKIP_TXT
+// ISSUE: KT-52684
+
+fun test(x: Int, y: Int) {
+    if (<!ASSIGNMENT_IN_EXPRESSION_CONTEXT!><!UNRESOLVED_REFERENCE!>x<!> < (<!SYNTAX!>if<!><!SYNTAX!><!> <!SYNTAX!>(<!><!UNRESOLVED_REFERENCE!><!SYNTAX!><!>y<!> >= 115<!>) 1 else 2<!SYNTAX!>))<!> {
+        Unit
+    }
+}